Dell PowerEdge EL Dell PowerEdge R720 and R720xd Owner's Manual - Page 20

Other Information You May Need, Getting Started Guide

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1. DC power supply status indicator Power Indicator Pattern Not lit Green Flashing amber Condition Power is not connected. The handle/LED indicator lights green indicating that a valid power source is connected to the power supply and that the power supply is operational. Indicates a problem with the power supply. CAUTION: When correcting a power supply mismatch, replace only the power supply with the flashing indicator. Swapping the opposite power supply to make a matched pair can result in an error condition and unexpected system shutdown. To change from a High Output configuration to a Low Output configuration or vice versa, you must power down the system. CAUTION: AC power supplies support both 220 V and 110 V input voltages. When two identical power supplies receive different input voltages, they can output different wattages, and trigger a mismatch. CAUTION: If two power supplies are used, they must be of the same type and have the same maximum output power. CAUTION: Combining AC and DC power supplies is not supported and triggers a mismatch. Flashing green When hot-adding a power supply, this indicates that the power supply is mismatched with the other power supply (in terms of efficiency, feature set, health status, and supported voltage). Replace the power supply that has the flashing indicator with a power supply that matches the capacity of the other installed power supply. Other Information You May Need WARNING: See the safety and regulatory information that shipped with your system. Warranty information may be included within this document or as a separate document. • The Getting Started Guide provides an overview of setting up your system, and technical specifications. This document is available online at www.dell.com/support/manuals. • The rack documentation included with your rack solution describes how to install your system into a rack, if required. • Any media that ships with your system that provides documentation and tools for configuring and managing your system, including those pertaining to the operating system, system management software, system updates, and system components that you purchased with your system. • For the full name of an abbreviation or acronym used in this document, see the Glossary at www.dell.com/ support/manuals. NOTE: Always check for updates on www.dell.com/support/manuals and read the updates first because they often supersede information in other documents. 20

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1. DC power supply status indicator
Power Indicator
Pattern
Condition
Not lit
Power is not connected.
Green
The handle/LED indicator lights green indicating that a valid power source is connected to the
power supply and that the power supply is operational.
Flashing amber
Indicates a problem with the power supply.
CAUTION: When correcting a power supply mismatch, replace only the power supply with
the flashing indicator. Swapping the opposite power supply to make a matched pair can
result in an error condition and unexpected system shutdown. To change from a High
Output configuration to a Low Output configuration or vice versa, you must power down
the system.
CAUTION: AC power supplies support both 220 V and 110 V input voltages. When two
identical power supplies receive different input voltages, they can output different
wattages, and trigger a mismatch.
CAUTION: If two power supplies are used, they must be of the same type and have the
same maximum output power.
CAUTION: Combining AC and DC power supplies is not supported and triggers a mismatch.
Flashing green
When hot-adding a power supply, this indicates that the power supply is mismatched with the
other power supply (in terms of efficiency, feature set, health status, and supported voltage).
Replace the power supply that has the flashing indicator with a power supply that matches the
capacity of the other installed power supply.
Other Information You May Need
WARNING: See the safety and regulatory information that shipped with your system. Warranty information may be
included within this document or as a separate document.
•
The
Getting Started Guide
provides an overview of setting up your system, and technical specifications. This
document is available online at
www.dell.com/support/manuals
.
•
The rack documentation included with your rack solution describes how to install your system into a rack, if
required.
•
Any media that ships with your system that provides documentation and tools for configuring and managing your
system, including those pertaining to the operating system, system management software, system updates, and
system components that you purchased with your system.
•
For the full name of an abbreviation or acronym used in this document, see the Glossary at
www.dell.com/
support/manuals
.
NOTE:
Always check for updates on
www.dell.com/support/manuals
and read the updates first because they often
supersede information in other documents.
20